Hinge



Feb. 15, 1938. s. UPERT www HINGE Filed 28, 1936 Patented Feb. 15, 1938PATENT oFFlCE HINGE Sidney Linert, Edmonton, England ApplicationDecember 2s, 1936, serial `1\ro..117,s33

In Great Britain March 2,1, 1936 3, Claims.

This invention relates'to hinges which, though they may have a widerange of application, have been more particularly designed for use infolding furnitureand the like', where it is necessary that when erected,the furniture shall be securely held against collapse and shall not becapable of wobble.

An object of this invention is to provide an improved manner of lockinga hinge in what'will be called its erected position. l

1n accordance with this invention a hinge for joining together attheirendstwo bars adapted to be collapsed to lie adjacent and parallel withone another and to be erected into a limiting perpendicular position,in'which position the end face of hinge and engaging a shoulder or thelike on the other face.

In accordance with a further feature of the invention, in a hinge forjoining together at their a ends three bars which are adapted to becollapsed to lie adjacent and parallel with one another and to beerected into a position in which one bar stands perpendicular to theother bars, which are in alignment, the bar that is adapted to beerected intothe perpendicular is positively held against dislodgmentwhen in that position by a catch piece on one of the other bars.

The invention will be described with reference to the accompanyingdrawing, wherein Figure 1 is a perspective view of a hinge according tothe invention, adapted toy connect three rods or bars at their ends;

Figure 2 is a side elevation of the embodiment shown in Figure 1;,and

Figure 3 is a side elevation of a hinge for two rods or bars.

Referring to Figures 1 and 2, it will be seen that to the end of a barII are pivotally connected the ends of bars I2 and I3 of similarcross-section, in such a manner that the three bars can be folded into acollapsed position in which they lie adjacent to and parallel with oneanother, or can be arranged in an erected position in which the bars IIand I2 are in alignment and the bar I 3 stands out at right angles tothem and is prevented from passing beyond this limiting position bycontact of the end face of bar I3 against the inner edge face of bar II.Such an arrangement is useful, for example, in folding beds where thebar II can be one of the longitudinal side members, the bar-,I2 one ofYtheside members, of the head rest, and the bar I3 a leg.

The end of the member |=I fis cut away on its opposite sidesrto receiveside plates I4, which lie flush with the side faces lof the bar, and isalso cut away in the middle 'to receive 4a reinforcing plate I 5 similarto the plates I4rivets i6 passing completely through the bar and theplates to se-` cure -the plates in position. The plates. have a size andoutline substantially the same as the end of the bar with which they areassociated, but at one corner of the bar II, and on one of the edges, a`short distance from the end, are formedeears, I] and I3 respectively.

n the end of the bar I2, are 'arranged similar- 1y to the plates I4 andI5, three plates I9 which have ears 2B shaped at the corner of the baradjacent the ears II. Passing through the ears I'I and 20 is a hinge-pin2l conveniently xed against dislod-gment as by peening; whileintermediate the plates are disposed spacing collars 22 on the pin 2|.

Similarly plates 23 on the end of the bar I3 are formed with ears 24,and have pivotal connection with the plates I4, I by a hingle-pin 25passing through ears I 8 and 24.

Projecting outwardly from the edge 26 of the bar I3 are lugs 21 formedintegral with the plates 23. Similarly from the edge 28 of the bar I2project L-shaped portions 29, across which is rigidly fixed a catchpiece 30 as by being forced into an under cut or slot.

Referring to Figure 2 it will be seen that when the bars are disposed intheir erected position, the bar I3 is positively held in place by theengagement between the catch piece 30 and the lugs 21. The assembly isusually so arranged that the bar I2 is held in place by the forcesresulting from the use; for instance where, as previously suggested, thebars II and I2 are the side members, and the bar I3 a leg, of a bed, theweight of the occupant will urge the head-rest bar I2 in ananti-clockwise direction as shown in Figure 2. In this connection it maybe noted that the rearward ends of the plates I4 and I9 are mitred asshown thus adding strength to the joint between the plates and the bar.

Referring now to the embodiment shown in Figure 3, in this case the barI2 has been eliminated and accordingly plates 3l replace plates I4 onthe end of bar II, and plates` 23 on bar I3 are substituted by plates32. As before, however, ears I8 and 24 are formed on the plates, and arepivotally interconnected by hinge pin 25.

In order to retain the elements in the erected position, a spring catchmember 33 is pivotally mounted upon bar I3 as by means of a bolt 34passing through the bar or its plates and also through the lugs 35formed on the catch member. A spring 3B constantly urges the catchmember in a clockwise direction, while at the forward end the memberoverlaps the end of the bar and is formed with a second pair of lugs 31co-nnected by a transverse catch-piece in the form of a fixed rod 38.The plates 3l have a groove 39 cut therein, and with this groove the rod38 engages as shown, to retain the bars Il l and I3 in the erectedposition. The groove 39 may extend into the end surface of the bar l l.v

It will be understood that the invention is not limited to theembodiments illustrated but may take other forms, and that a hingeconstructed in accordance with this invention will have a wide varietyof applications, not limited to folding furniture.

What I claim isz- 1. A hinge for joining together at their ends threebars, two of which are pivoted on the third and are adapted to becollapsed to lie adjacent and parallel with the third along oppositeedges thereof, and are adapted to be erected, one by a movementthroughrtwo right angles into alignment with the third bar, and thesecond by a movement through one right angle into perpendicularity withthe third bar, comprising in combination, side plates and reinforcingplates Xed in parallel in the ends of the bars and having projectingears, hinge pins passing through cooperating ears on the plates of thefirst and third bars, and of the second and third, and a transversecatch-piece carried by the plates of the first bar and engaging behindlugs on the plates oi the second bar.

2. A hinge for joining together at their ends three bars, two of whichare pivoted on the third and are adapted to be collapsed to lie adjacentand parallel with the third along opposite edges thereof, and areadapted to be erected, one by a movement through two right angles intoalignment with the third bar, and the second by a movement through oneright angle into perpendicularity with the third bar, comprising incombination, side plates and reinforcing plates fixed in parallel in theends of the bars and having projecting ears, hinge pins passing throughcooperating ears on the plates of the rst and third bars, and of thesecond and third, and .a transverse catch-piece carried by L-shapedextensions on the plates of the rst bar and engaging behind lugs on theplates of the second bar.

3. A hinge for joining together at their ends three bars, two of whichare pivoted on the third and are adapted to be collapsed to lie adjacentand parallel with the third along opposite edges thereof, and areadapted to be erected, one by a movement through two right angles intoalignment with the third bar, and the second by a movement through oneright angle into perpendicularity with the third bar, comprising incombination, side plates and reinforcing plates xed in parallel in theends of the bars and having projecting ears, and hinge pins passingthrough c-o-operating ears on theN plates of the irst and third bars,and of the second and third.

SIDNEY LIPERT.

